<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="/component/layui/css/layui.css"/>
    <style>
        .layui-row {
            display: flex;
            flex-direction: column;
            flex-wrap: wrap;
            align-content: center;
            justify-content: center;
        }

        .layui-btn {
            font-size: 18px;
        }

        .layui-table td, .layui-table th {
            font-size: 15px;
        }

        .errorTitle {
            width: 80%;
            border: 1px solid #e6e6e6;
            margin-top: 10px;
            padding: 20px;
            border-radius: 10px;
            max-height: 15vh;
            min-height: 15vh;
            overflow: auto;
        }

        .errorContent {
            color: darkred;
        }
    </style>
</head>
<body>
<div style="margin-top: 30px;">
    <hr class="layui-border-red" style="margin: 0;">
</div>
<div class="layui-row" style="height: calc(100vh - 400px)">
    <div class="layui-upload" style="width: 70%">
        <button type="button" class="layui-btn layui-btn-normal" id="fileList">选择多文件</button>
        <a href="/archives/batch/download/template">
            <button type="button" class="layui-btn" id="downloadTemplate">下载批量入库模版</button>
        </a>
        <div class="layui-inline layui-word-aux" style="margin-top: 8px">
            只支持Excel文件，请下载模版填写并上传。文件后缀名为.xls或.xlsx
        </div>
        <div class="layui-upload-list" style="max-width: 1000px;">
            <table class="layui-table">
                <colgroup>
                    <col>
                    <col width="150">
                    <col width="260">
                    <col width="150">
                </colgroup>
                <thead>
                <tr>
                    <th>文件名</th>
                    <th>大小</th>
                    <th>上传进度</th>
                    <th>操作</th>
                </tr>
                </thead>
                <tbody id="demoList"></tbody>
            </table>
        </div>
        <button type="button" class="layui-btn" id="fileListAction">开始上传</button>
    </div>
</div>
<div class="layui-row">
    <div style="font-weight: 500;color: darkred;">表格上传错误信息</div>
    <div class="errorTitle">
    </div>
</div>
<script src="/component/layui/layui.js"></script>
<script th:inline="javascript">
    var userId = [[${userId}]];
    let $ = layui.jquery;

    layui.use(['upload', 'jquery'], function () {
        let $ = layui.jquery;
        let upload = layui.upload;
        var element = layui.element;
        //多文件列表
        var uploadListIns = upload.render({
            elem: '#fileList'
            , elemList: $('#demoList') //列表元素对象
            , url: '/archives/batch/upload/'
            , accept: 'file'
            , multiple: true
            , number: 3
            , auto: false
            , exts: "xls|xlsx"
            , bindAction: '#fileListAction'
            , choose: function (obj) {
                var that = this;
                var files = this.files = obj.pushFile(); //将每次选择的文件追加到文件队列
                //读取本地文件
                obj.preview(function (index, file, result) {
                    var tr = $(['<tr id="upload-' + index + '">'
                        , '<td>' + file.name + '</td>'
                        , '<td>' + (file.size / 1024).toFixed(1) + 'kb</td>'
                        , '<td><div class="layui-progress" lay-filter="progress-demo-' + index + '"><div class="layui-progress-bar" lay-percent=""></div></div></td>'
                        , '<td>'
                        , '<button class="layui-btn layui-btn-xs demo-reload layui-hide">重传</button>'
                        , '<button class="layui-btn layui-btn-xs layui-btn-danger demo-delete">删除</button>'
                        , '</td>'
                        , '</tr>'].join(''));

                    //单个重传
                    tr.find('.demo-reload').on('click', function () {
                        obj.upload(index, file);
                    });

                    //删除
                    tr.find('.demo-delete').on('click', function () {
                        delete files[index]; //删除对应的文件
                        tr.remove();
                        uploadListIns.config.elem.next()[0].value = ''; //清空 input file 值，以免删除后出现同名文件不可选
                    });

                    that.elemList.append(tr);
                    element.render('progress'); //渲染新加的进度条组件
                });
            }
            , done: function (res, index, upload) { //成功的回调
                var that = this;
                if (res.code === 200) { //上传成功
                    var tr = that.elemList.find('tr#upload-' + index)
                        , tds = tr.children();
                    tds.eq(3).html(''); //清空操作
                    delete this.files[index]; //删除文件队列已经上传成功的文件
                    layer.msg(res.message, {icon: 1, time: 3000});
                    return;
                }
                this.error(index, upload);
            }
            , allDone: function (obj) { //多文件上传完毕后的状态回调
                console.log(obj)
            }
            , error: function (index, upload) { //错误回调
                var that = this;
                var tr = that.elemList.find('tr#upload-' + index)
                    , tds = tr.children();
                tds.eq(3).find('.demo-reload').removeClass('layui-hide'); //显示重传
            }
            , progress: function (n, elem, e, index) { //注意：index 参数为 layui 2.6.6 新增
                element.progress('progress-demo-' + index, n + '%'); //执行进度条。n 即为返回的进度百分比
            }
        });
    });

    let socket;

    function openSocket() {
        const socketUrl = "ws://localhost:9030/api/pushMessage/" + userId;
        if (socket != null) {
            socket.close();
            socket = null;
        }
        socket = new WebSocket(socketUrl);
        //打开事件
        socket.onopen = function () {
            console.log("websocket已打开");
        };
        //获得消息事件
        socket.onmessage = function (msg) {
            let html = '<div class="errorContent">'+msg.data+'</div>';
            $(".errorTitle").append(html);
            console.log(msg.data)
        };
        //关闭事件
        socket.onclose = function () {
            console.log("websocket已关闭");
        };
        //发生了错误事件
        socket.onerror = function () {
            console.log("websocket发生了错误");
        }
    }

    function sendMessage(sendMsg) {
        socket.send(sendMsg);
    }

    openSocket();
</script>
</body>
</html>